S
M
T
W
T
F
S
26
89°
73°
27
90°
75°
28
92°
76°
29
92°
76°
30
91°
74°
31
92°
74°
1
89°
73°
2
88°
73°
3
89°
74°
4
90°
72°
5
91°
72°
6
90°
71°
7
89°
72°
8
92°
73°
9
91°
74°
10
92°
76°
11
93°
75°
12
92°
73°
13
89°
73°
14
Hist. Avg.
90°
74°
15
Hist. Avg.
90°
74°
16
Hist. Avg.
90°
74°
17
Hist. Avg.
90°
74°
18
Hist. Avg.
90°
74°
19
Hist. Avg.
90°
74°
20
Hist. Avg.
90°
74°
21
Hist. Avg.
90°
73°
22
Hist. Avg.
90°
73°
23
Hist. Avg.
90°
73°
24
Hist. Avg.
89°
73°
25
Hist. Avg.
89°
73°
26
Hist. Avg.
89°
73°
27
Hist. Avg.
89°
73°
28
Hist. Avg.
89°
73°
29
Hist. Avg.
89°
73°
30
Hist. Avg.
89°
73°
31
Hist. Avg.
89°
73°
1
Hist. Avg.
89°
73°
2
Hist. Avg.
89°
72°
3
Hist. Avg.
89°
72°
4
Hist. Avg.
88°
72°
5
Hist. Avg.
88°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 88° to 93°, with overnight lows between 71° and 76°. The average high for August is 91° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
